I only informed you of the Mega Man 3 OST release two days ago, but we're moving right along to Mega's battle against the blackmailed Siberian scientist, Dr. Cossack. The fourth game sports the longest soundtrack of the six NES titles, and though some consider the tunes to be very high quality, this is where I started to see some slippage. But that's just me.

Like the first three albums, this one also contains the music from the Complete Works PlayStation release. But whereas the first three games only replaced some songs with arranged tracks that originally appeared in the The Power Battle and The Power Fighters arcade games, MM4 through 6 were given total top-to-bottom soundtrack makeovers. Nice.